Table T9. Control points used to calculate sedimentation rates at Site 1093.
| Code | Event/Zone/Chron | Depth range of stratigraphic datums | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Top |
Base | Mean | Sedimentation rate (m/m.y.) |
||||||||||
| Core,
section, interval (cm) |
Depth (mbsf) |
Depth (mcd) |
Core,
section, interval (cm) |
Depth (mbsf) |
Depth (mcd) |
Depth (mbsf) | Depth (mcd) |
Age (Ma) | |||||
| 177- | 177- | ||||||||||||
| CN | acme E. huxleyi | 1093A-2H-3, 30-30 | 11.8 | 11.98 | 1093A-2H-5, 30-30 | 14.8 | 14.98 | 13.30 | 13.48 | 0.085 | ~250 |
||
| DIAT | TOP T. lentiginosa Subzone b | 1093A-5H-6, 1-1 | 44.51 | 47.87 | 1093A-5H-CC, 15-20 | 46.86 | 50.22 | 45.68 | 49.04 | 0.18 | |||
| CN | FO E. huxleyi | 1093A-8H-1, 140-140 | 66.90 | 74.43 | 1093A-8H-2, 65-65 | 67.65 | 75.18 | 67.28 | 74.81 | 0.26 | |||
| RAD | BOT Omega Zone | 1093A-13H-4, 80-81 | 118.30 | 130 | 1093A-13H-5, 80-81 | 119.80 | 131.5 | 119.05 | 130.72 | 0.46 | |||
| CN | LO P. lacunosa | 1093A-15H-6, 40-40 | 139.90 | 152.43 | 1093A-16H-3, 129-129 | 145.79 | 159.2 | 142.84 | 155.80 | 0.46 | |||
| DIAT | TOP A. ingens Subzone c | 1093A-17H-CC, 24-29 | 160.88 | 174 | 1093D-3H-CC, 0-10 | 159.90 | 175.1 | 160.39 | 174.56 | 0.65 | |||
| PMAG | BOT C1n (Brunhes) | 1093A-20H-7, 30-30 | 188.80 | 208 | 1093A-22H-2, 80-80 | 200.80 | 222 | 194.80 | 214.63 | 0.78 | |||
| RAD | BOT Psi Zone | 1093A-20H-CC, 17-22 | 189.28 | 208.3 | 1093A-21H-CC, 48-53 | 198.48 | 219 | 193.88 | 213.68 | 0.83 | |||
| CN | LO R. asanoi | 1093A-22H-2, 30-30 | 200.30 | 220.8 | 1093D-8H-3, 0-0 | 205.50 | 227.3 | 202.90 | 224.06 | 0.88 | |||
| CN | RE Gephyrocapsa medium (4-5.5 µm) | 1093A-24H-5, 15-15 | 223.65 | 245.5 | 1093A-24H-5, 140-140 | 224.90 | 246.8 | 224.28 | 246.16 | 0.96 | |||
| DIAT | TOP A. ingens Subzone b | 1093A-26H-CC, 19-24 | 243.69 | 264 | 1093D-12H-CC, 15-20 | 245.22 | 270.6 | 244.46 | 267.28 | 1.07 | |||
| CN | FO R. asanoi | 1093A-26H-6, 50-50 | 242.50 | 262.8 | 1093A-26H-CC, 19-24 | 243.69 | 264 | 243.10 | 263.36 | 1.08 | |||
| DIAT | TOP A. ingens Subzone a | 1093D-18H-CC, 0-2 | 297.50 | 323.6 | 1093D-21X-CC, 0-1 | 319.00 | 345.1 | 308.25 | 334.35 | 1.30 | |||
| CN | FO Gephyrocapsa large (>5.5 µm) | 1093D-18H-CC, 0-2 | 297.50 | 323.6 | 1093D-21X-CC, 0-1 | 319.00 | 345.1 | 308.25 | 334.35 | 1.46 | |||
| RAD | BOT Chi Zone | 1093D-35X-CC, 0-1 | 452.99 | 479.1 | 1093D-36X-CC, 24-29 | 462.96 | 489.1 | 457.98 | 484.08 | 1.92 | ~80 | ||
| DIAT | TOP T. kolbei-F. matuyamae Zone | 1093D-33X-CC, 13-18 | 434.38 | 460.5 | 1093D-34X-1, 0-1 | 434.43 | 460.5 | 434.40 | 460.50 | 2.00 | |||
| RAD | BOT Phi Zone | 1093D-37X-CC, 20-25 | 472.74 | 498.8 | 1093D-40X-CC, 17-22 | 495.67 | 521.8 | 484.21 | 510.30 | 2.42 | |||
| DIAT | TOP T. vulnifica Zone | 1093D-37X-3, 0-1 | 465.90 | 492 | 1093D-37X-6, 0-1 | 470.40 | 496.5 | 468.15 | 494.25 | 2.50 | |||
| PMAG | BOT C2r (Matuyama) | 1093D-38X-5, 50-50 | 479.00 | 505.1 | 1093D-38X-5, 50-50 | 482.50 | 508.6 | 480.75 | 506.85 | 2.58 | |||
| DIAT | TOP T. insigna Zone | 1093D-38X-5, 0-1 | 478.50 | 504.6 | 1093D-38X-CC, 48-53 | 480.26 | 506.4 | 479.38 | 505.48 | 2.63 | |||
| DIAT | TOP F. interfrigidara Zone | 1093D-41X-CC, 26-31 | 502.69 | 528.8 | 1093D-44X-CC, 20-25 | 531.31 | 557.4 | 517.00 | 543.10 | 3.26 | |||
| PMAG | BOT C2An (Gauss) | 1093D-45X-3, 130-130 | 544.20 | 570.3 | 1093D-46X-2, 100-100 | 552.00 | 578.1 | 548.10 | 574.20 | 3.58 | |||
| DIAT | BOT F. interfrigidara Zone | 1093D-47X-CC, 0-10 | 559.40 | 585.5 | 1093D-47X-CC, 0-10 | 559.40 | 585.5 | 559.40 | 585.50 | 3.80 | |||
| DIAT | Neobrunia mirabilis ooze | 1093D-48X-CC, 8-9 | 568.88 | 595 | 1093D-48X-CC, 8-9 | 568.88 | 595 | 568.88 | 594.98 | 6.3-6.9 | |||
Notes: Code abbreviations: CN = calcareous nannofossil, DIAT = diatom, RAD = radiolaria, PMAG = magnetic polarity. Event abbreviations: FO = first occurrence, LO = last occurrence, RE = reentrance, TOP = top of zone, BOT = bottom of zone. This table is also available in ASCII format in the TABLES directory.